diff --git a/Firefox-Tweaks.md b/Firefox-Tweaks.md
index 5c21ca3..cab7ee7 100644
--- a/Firefox-Tweaks.md
+++ b/Firefox-Tweaks.md
@@ -47,6 +47,13 @@ user_pref("toolkit.telemetry.server", "");
 user_pref("toolkit.telemetry.shutdownPingSender.enabled", false);
 user_pref("toolkit.telemetry.updatePing.enabled", false);
 
+user_pref("doh-rollout.balrog-migration-done", true);
+user_pref("doh-rollout.disable-heuristics", true);
+user_pref("doh-rollout.doneFirstRun", true);
+user_pref("doh-rollout.doorhanger-decision", "UIDisabled");
+user_pref("doh-rollout.home-region", "US");
+user_pref("doh-rollout.uri", "");
+
 user_pref("browser.proton.enabled", false);
 user_pref("toolkit.legacyUserProfileCustomizations.stylesheets", true);
 user_pref("widget.content.gtk-theme-override", "TOK");
@@ -54,8 +61,8 @@ user_pref("widget.non-native-theme.enabled", false);
 user_pref("widget.non-native-theme.gtk.scrollbar.allow-buttons", true);
 user_pref("widget.non-native-theme.gtk.scrollbar.round-thumb", false);
 user_pref("widget.non-native-theme.scrollbar.active-always-themed", false);
-user_pref("widget.non-native-theme.scrollbar.size", 20);
-user_pref("widget.non-native-theme.scrollbar.size.override", 20);
+user_pref("widget.non-native-theme.scrollbar.size", 16);
+user_pref("widget.non-native-theme.scrollbar.size.override", 16);
 user_pref("widget.non-native-theme.scrollbar.style", 2);
 
 user_pref("browser. safebrowsing. enabled", false);